| **Special Charges (Narrative) (Details) (USD $)In Millions, unless otherwise specified**       | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended |
|------------------------------------------------------------------------------------------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|-----------------|----------------|
||
| **Purchased In-Process Research And Development (IPR&D) And Special Charges [Line Items]** |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Special charges                                                                                |           |            |           | $ 4             | $ 9            | $ 102           | $ 162          |            |           |            |           |            |           |            |           |            |           | $ 39            | $ 34           | $ 185           |           |            |           |            |           |            |           |            | $ 44           |            |           |            |           | $ 1             | $ 18           | $ 24            |           |            |           |            |           |            |           |            |           |            |           |   |   |   |   | $ 4 | $ 9 | $ 58 |   |   |   |   |   |   |   |   |   |   |   |   | $ 38 | $ 16 | $ 161 |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Severance and benefit costs                                                                    |           |            |           |            |           |            |           |            |           |            |           |            |           | 2               | 38             |            |           |            |           |            |           |            |           |            | 19             | 10              | 109            |            |           |            | 11             |            |           |            |           |            |           |            |           | 0               | 0              | 5               |           |            |           |            |           |   |   |   |   |   |   |   |   |   |   | 0 | 2 | 27 |   |   |   |   |   |   |   |   |   |   |   |   | 19 | 10 | 104 |   |   |   |   |   |   |   |
| Special charges, inventory obsolescence charges                                                |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           | 13              |           |            |           |            |           |            |           |            |           |            | 1              | 18              | 17             | 1               | 18             | 17 |   |   |   |   |   |   |   |   |   |   |   |   | 0 | 0 | 0 |   |   |   |   |   |   |   |   |   |   |   |   | 0 | 0 | 0 |   |   |   |   |
| Special charges, fixed asset impairment charges                                                |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           | 1               |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            | 0              |            |           |            |           |            |           |            |           |            |           |            |           |            |           |   | 0 | 0 | 0 |   |   |   |   |   |   |   |   |   |   |   |   | 1 | 0 | 0 |   |   |   |   |   |   |   |   |   |   |   |   | 2 | 2 | 41 |   |
| Restructuring reserve period expense                                                           |           |            |           |            |           |            |           | 51              | 3              | 7               | 37             | 8               |           |            |           |            | 6              |            |           |            | 17             | 4               | 18             | 7               |           |            |           | 11              |           | 20              |           |            |           |            |           |            | 0              | 0               | 2              |            |           |            |           |            |           |            |           |   |   |   |   |   |   |   | 3 | 7 | 31 |   |   |   |   |   |   |   |   |   |   |   |   | 17 | 4 | 16 |   |   |   |   |   |   |   |   |   |   |
| Restructuring and Related Cost, Number of Positions Eliminated, Inception to Date Percent      |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           | 5.00%           |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Idle facility costs                                                                            |           |            |           |            |           |            |           |            |           |            |           |            | 13             |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Impairment of Intangible Assets, Finite-lived                                                  |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   | 13 |
| Legal settlement charge                                                                        |           | 22              | 28             |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Purchased technology and patents                                                               | $ 12           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |            |           |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |

| X                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Idle facility costs.
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| - Definition
Includes costs associated with cost of sales expenses and operating expenses that are unusual or infrequent in occurrence (such as restructuring, remediation, impairment charges and certain litigation charges).
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                  |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.
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No definition available.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
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| - Definition
Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Percentage of the total number of positions eliminated as of the balance sheet date since inception of the restructuring plan(s).
+ References
No definition available.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.
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